Issue with /Sil images going blank (US Pure)

I tried destroying all three signs and crafting new ones, and the two small wooden signs appear to be working now. The new portrait frame still will not accept the picture. I also deleted the original images from flickr and reuploaded them, still no luck getting the image to work on the portrait frame. When I use the sil command it says the picture was added to download que then successfully loaded to the sign, but the portrait remains blank. I have tried putting this same picture on a wooden sign and it works fine. I have added other pictures to portrait frames in the previous day and they worked, but now when I try adding one of these other pictures to this portrait frame they also do not display and portrait remains blank.

Tried making some more portrait frames and this time the image stuck right away and appears to have stayed, so perhaps the problem is with the picture frames and not the image itself?